Wire-twisting machine.



PATBNTED JAN. 6, 1908.

2 SHEETS-SHEET 1,

G. V. WILLSON. WIRE TWISTING MACHINE.

APPLICATION FILED JUNE 4, 19 01. RENEWED JUNE 12, 1902.

no MODEL.

PATENTED JAN, 6, 1903.

G.'v. WILLSON. v WIRE'T ISTING MACHINE. APPLICATION FILED JUNE 4, 1901. RENEWED JUNE 12, 1902.

2 SHEETS-SHEET 2.

N0 MODEL.

the wire; and Fig. 8 is a perspective view of a wire hoop with its ends twisted together in UNITED-- ST T S T-ENT FFICE.

WIRE-TWIST-ING MACH-ms.

SPECIFICATION forming part of Letters Patent No. 717,650, dated January 6, 1903.

Application filed June 4. 1901. Renewed June 12, 1902 Serial No. 111,289. (No model.)

ctZZ whom it may concern;

Be it known that I, GEORGE V. VVILLSON, a citizen of the United States of America, residing in the city of littsburg, in the county of Allegheny, in the State of Pennsylvania, have invented a certain new and useful Improvement in Wire-Twisting Machines, of which ihe'following is a true and exact description, reference being had to the accompanyiug drawings, which form a part thereof.

My invention relates to machinery for twisting together the ends of wiressuch, for instance, as the two ends of a wire formed into a hoopand specifically my invention is an improvement upon the wire-twisting machine inventedby George M. Depew and for which the said'Depew has filed an application for Letters Patent, dated May-'28, 1901, Serial No. 62,200. i Y

The object of my invention is, in a machine of the character invented by Depew, to provide an improved twisting device which will engage and act upon a smaller length of the wire end, and, further, to provide means for holding the twisting devices in correct alinement during their operation upon the wire.

The nature of my improvements will be best understood as described in connection with the drawings, in which they are illustrated, and in which- Figure'l is a plan view of the Depew twisting-machine with my improvements. Fig. 2 is a cross-section on the line 2 2 of Fig. 1. Fig. 3 is a longitudinal section taken on the section-line 3 3 of Fig. 1; Fig. 4, a horizontal section taken on the sectionline 140f Fig. 5. Fig. 5 is an end view of one of the heads and. its immediate attachments, taken on the section-line 5 5 of Fig. 4. Fig. 6 isa perspective view of one of the twisting-dies which I prefer to employ in connection with the twisting gear-wheel. Fig. Tis a sectional view of the dies, showing their mode of operating upon the manner in which the machine twists them.

A indicates the bed-plate or frame of the machine, which, as shown, has a longitudinal slot .A, (see Fig. 1,) which at its inner end broadens out into a transverse slot, (indicated at c, Fig. 2.)

. the gear-wheel D wheel is connected with a clutch member D which when shifted in onedirection engages the opposite clutch member D" on the shaft D, so that the gearwh eel'rotates with the shaft, while when shifted in the other direction, the clutch members being uncoupled,

the shaft rotates without affecting the gearwheel. I

E E, as already mentioned, are shafts journaled in the blocks 0 0, each of said shafts supporting a gear-wheel, (indicated at EE which gear-wheels are in engagement with The shafts E are prolonged toward the front of the machine, terminating in joint members, (indicated at E and E F is a pivot supported on a downwardlyprojecting extension A of the frame and suppor'tingin turn the bell-crank lever; (indicated at F F1) the member F being in engagement with the clutch member D and the other lever-arm F being connectedthrough a link F with a treadle F which is normally pressed up, as shown, by a spring F G G are fixed pivots secured in the frame A and upon which'are journaled the inner ends of the arms G G, said inner ends being enlarged, as indicated at G G and said enlargements being provided with segmental gears, (indicated at g gfl) said gears being in constant engagement with each other. The arms G and G have formed upon them or secured to them the bearing-heads G G vertically slotted, as indicated at g giand preferably having the internal .contour indicated at G in Figs. 4 and 5. The bases G of the heads G rest upon the bearing B and are formed with inwardly-extending lips G (see Fig. 3,) which extend under and engage the too outwardly-projecting lip of the bearing B. Preferably forming part of the heads G are the projecting bearings, (indicated at G,) said bearings supporting the outer ends of the shafts K K, upon which are secured the bevel-wheels K, while the inner ends K K of said shafts form joint members, which are coupled with the joint members E E" to form universal joints, as shown.

H H are bevel gear-wheels which fit in the cavity of the bearing-heads G and are provided, as shown, with annular bearing plates or flanges H which project into an annular channel in the head and are held in place by the slotted plates J, secured on the face of the head and slotted, as indicated at J. The gear-wheels H are preferably made with projecting hubs H, .which extend through a circular opening in the plates J and are provided with guideways, (indicated at 11 which hold the removable twisting-dies, (indicated at 1,) said twisting-dies being slotted, as indicated at I, and having the outer lips of said slots projected inward, as indicated at 1 The outer faces of the gear-wheels H are recessed, as indicated at H so as to make the contact between the wheel and the wire as short as practicable.

The machine above described is in its general characteristics the Depew machine already referred to, myinvention being confined to the special construction of the heads G and the gear-wheel H, by means of which I secure the short contact between the wires and the Wheels, and also to the provision of the device which holds the heads down upon the bearing B.

In operation the two ends of the wire to be twisted together are inserted in the twisting device through the slots in the heads and wheels. The operator then placing his foot upon the treadle F couples the gear-wheel D with the shaft D, which is constantly running, the said gear-wheel transmittingmotion through the gear-wheels E and E and their described connections to the shafts K K and through the gear-wheels K to the gearwheels H H, which are caused to rotate in opposite directions, twisting the loose ends of the wires around the looped portions. As this twisting takes place the heads G G move outward, a perfectly synchronous outward movement being secured by the engagement with the segments G and G and as soon as the twisting is completed and the wire removed the heads and twisting dies are brought together by the action of the spring I L, which holds the parts normally in the position shown in Fig. 1.

Having now described myinventiou, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine for twisting the ends of wires together, the combination of slotted bearingheads G G having the capacity of moving toward and away from each other, with slotted gear-wheels having their toothed faces turned outwardly and having peripheral bearing-flanges on their inner faces sup-' ported in said heads, said gears being adapted to twist the wires as described.

2. In a machine fortwisting the ends of wires together, the combination of slotted bearing-heads G5 G having the capacity of moving toward and away from each other, with slotted gear-wheels having their toothed faces turned outwardly and having peripheral bearing-flanges on their inner faces supported in said heads, and said gears being adapted to twist the wires as described, and having their outer faces within the toothed sections recessed to diminish their contact with the wires.

3. In a machine for twisting the ends of wires together, the combination of slotted bearing-heads G G having the capacity of moving toward and away from each other, with slotted gear-wheels having their toothed faces turned outwardly and having peripheral bearing-flanges on their inner faces supported in said. heads, their inner faces projected beyond the bearing and their outer faces within the toothed sections recessed.

4:. In a machine for twisting the ends of wires together, the combination of slotted bearing-heads G G having the capacity of moving toward and away from each other, with slotted gear-wheels having their toothed faces turned outwardly and having peripheral bearing'flanges on their inner faces sup.- ported in said heads, said gears being'adapted to twist the Wires as described, and removable slotted twisting-dies Isecured on the inner faces of the gear-wheels.

5. In a machine for twisting the ends of Wires together, the combination with a stationary bearing B having an outwardly-projecting segmental lip, of bearing-heads G G movable to and from each other on bearing B and having inwardly-projecting lips G in engagement with the segmental lip of the stationary bearing, and slotted rotary wire-twisting mechanism supported on bearings G GEORGE V. WILLSON.

Witnesses:

FRANK L. DANAHY, OLIVER H. PERRY. 

